Which statement A-D regarding electronegativity is not correct? Select one: a. Pauling assigned electronegativity values to atoms based on their ionization energies and electron affinities. b. All bonds are polar except those between the same atoms (e.g., CO vs. O2). c. Statements A-D are all correct. d. Electronegativity is a measure of an atom's ability to attract electrons in a molecule. e. If the electronegativity difference is sufficiently large, then an ionic bond is formed.

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